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- goiter! tans gaunt ffitz.

J, G. ROMINGER, "OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HIM- SELF AND JOHNSON, OF THE SAME PLACE;

Lem" Patent No. 68,654, dated September 10, 1867.

IMPROVEMENT IN SLIDE-RES'IS roe LATHES.

To ALL WHOM IT MAY couches! Be it known that I, J. G. ROMINGER,-0f Philadelphia, Pennsylvania, have invented certain Improvements in Slide-Rests for'Lethes; and I do hereby declare the following to be a full, clesnand exact description of the some. I V i My invention consists in combining with the lower plate and the bed of a slide-rest a worm-wheelon the latter, and a spindle, with a. norm, on the former so that the point of the tool can he made to traverse in a line at any desired angle in respect to the latter bed. i

In order'to enable others skilled in them-t to make and use my invention, I will now proceed to describe its construction and operation, reference being had to the accompanying drawing, which forms a part of this specification, and in which- Figure 1 is a, sectional elevntion of m flmprovel slide-rest for lethes.

Figure2 is a sectional plan on the line 1-2, fig. 1, and

FigureB is a, plan view. 7 v 1 At the outer end of the plate A, secured to the bed-plate of a lathe in the usual manner, is a. hollow cylindrical projection, a, upon which bears o similur projection, a, forming a, part of a bed, B,a short spindle, at, extending from the projection 11 into'the said hollow projection a, and having at its lower end aworm-wheel, b. In hearings in the projection a turns it spindle, c, a worm on which is adapted to the teeth of thenheel b, the seid spindle projecting beyond the plate A, and having asquare outer end for the reception ofa' suitable instrument by menus of which the spindle may be turned. On p'a-rallel V-shahed guides e e, near the oppositeedges of the bed B, slides a plate, G, and through a nut, a, at the under side of th'is'plote, passes the usual screw shaft D, which turns in bearings at the opposite ends of the bed B. A plate, F, is so secured to the plate 0 as to slide freely thereon in a direction at right angles to the bed, and in a projection, i, at the" outer end of t he plate, turns a. scrc \.'spindle, It, towhich is secured a crank-handle, j, the opposite end of the spindle passing. through a nut, m, attached to the plate Through a slotted projection on the plate F passes it cutting tool,

X, which is secured in the usual manner.

, By turning the spindle orth screw-shot D the cutter may he moved from one end to-the other of'the had, or to or from the object in the lathe, asein slide'rests of the usual construction; Iudependent of these movements, however, another-hwy beiinported to the cutting tool by turning the worm-spindle, the bed and its plate, with the tool, being thereby readily end accurately adjusted to' nny desired angle in respect to the lathe. I- cloim as my invention, and desire to secure by Letters Patent- The combinationandla-rrungcmeht of the plate A, the worm wheel b, confined therein, and secured to the short spindle a of' the bed 13 of a slide-rest, and the worth-spindle c, all as set forth for the purpose specified.

In testimony whereof Lhnve signed my name to this specification in the presencc of two subscribing witnesses.

, J. o. nom nees.

Witnesses:

CHARLES E. Fosrnn, W. J. R. DEL-ANY. 

